Aptitude - Problems on Trains - Discussion

Discussion Forum : Problems on Trains - General Questions (Q.No. 9)
9.
Two trains are moving in opposite directions @ 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is:
36
45
48
49
Answer: Option
Explanation:

Relative speed = (60+ 90) km/hr

   = 150 x 5 m/sec
18

   = 125 m/sec.
3

Distance covered = (1.10 + 0.9) km = 2 km = 2000 m.

Required time = 2000 x 3 sec = 48 sec.
125

Discussion:
107 comments Page 9 of 11.

Prateek said:   1 decade ago
What is the time taken for faster train to cross the slower train?

Rony said:   5 years ago
Why not solve in km?

Speed & distance should be in km, right?

Ram said:   7 years ago
Guys, can anyone explain how 41.6666667 was turn into 125/3?

Ram said:   1 decade ago
Please explain the step 150*5/18=3/125 how it will came ?

Jyothi said:   10 years ago
km/hr = 1000 m/3600 sec = 5/18 m/sec [1000/3600 = 5/18].

CHANDRU said:   1 decade ago
Train moving in opposite direction why are you adding?

Divyan said:   1 decade ago
Why we are not simplifying 125/3? Please help me guys.

Shri said:   3 years ago
Yes, absolutely right Agree with you @Hadiyal Jignesh.
(3)

Gou said:   6 years ago
How to solve (2000*3÷125) ? please explain in breif.

Jinni said:   5 years ago
The time for the long train will be the same right?
(2)


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